# GreenCheckmark — Create verifiable videos

> Create verifiable videos (iPhone/iPad app by Evergreen Labs.)

- Source: https://appshunter.io/ios/app/greencheckmark/id6758072537 (this page in markdown: same URL + `.md`)
- Developer: [Evergreen Labs](https://appshunter.io/developer/1786660051)
- Category: Photo & Video, Utilities
- Price: Free
- Age rating: 4+
- Requires: iOS 16.0 · 53 MB
- Languages: American English
- Released: 2026-02-01
- Data updated: 2026-09-02
- User reviews in markdown: https://appshunter.io/ios/app/greencheckmark/id6758072537/reviews.md

## What is GreenCheckmark?

GreenCheckmark is a special camera app for recording important footage. It signs every photo and video using the C2PA specifications created by Adobe, BBC, Google, Microsoft and others.

1) Just like a signed PDF file, viewers can independently confirm that what you shared came directly from a camera and has not been altered since capture
2) Sign In With Apple can be used to add creator attribution
3) c2paviewer.com is a convenient way to check that a photo has not been modified since it was signed
4) A built-in Share extension is also included to verify photos/videos from other apps

This is a community project developed by Evergreen Labs, a non-profit organization registered in Canada.

Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Privacy Policy: https://green-checkmark.org


## Version history (last 5 releases)

### 2.10.24 — 2026-09-01

Improved protection against signed captures of screen displays. Photos and videos are checked before signing, with server-tunable detection for faster improvements.

### 2.10.23 — 2026-08-30

Remote-configurable system notices and signing controls. Overlay banner validation text now points to c2pa.sh.

### 2.10.22 — 2026-08-27

Capture times use a trusted network clock. Mock GPS is blocked from signed media. Confirms before signing when the device clock disagrees with trusted capture time.

### 2.10.21 — 2026-08-26

Security improvements.

### 2.10.20 — 2026-08-25

Request Pro access for your organization from Settings. First-launch welcome explains capture and C2PA signing. Clearer notification prompt when video signing starts. Signature works for saved videos in the gallery.

## More apps by Evergreen Labs

- [Sidekick - Dashcam, GPS, Alert](https://appshunter.io/ios/app/sidekick-dashcam-gps-alert/id957252199)
- [Travel Shopping Buddy](https://appshunter.io/ios/app/travel-shopping-buddy/id1422456399)
- [Plane Above Me](https://appshunter.io/ios/app/plane-above-me/id1637351605)
- [BuzzWatch](https://appshunter.io/ios/app/buzzwatch/id6443629077)
- [TwinCam](https://appshunter.io/ios/app/twincam/id6448645623)
- [How Deep?](https://appshunter.io/ios/app/how-deep/id6450241637)

All apps by Evergreen Labs: https://appshunter.io/developer/1786660051

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-09-02.*